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Find the possible values of 'a' such that the inequality `3-x^(2)gt |x-a|` has atleast one negative solution

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To solve the inequality \( 3 - x^2 > |x - a| \) and find the possible values of \( a \) such that there is at least one negative solution, we can follow these steps: ### Step 1: Analyze the inequality We start by rewriting the inequality: \[ 3 - x^2 > |x - a| \] This can be split into two cases based on the definition of absolute value. ### Step 2: Case 1: \( x - a \geq 0 \) (i.e., \( x \geq a \)) In this case, the inequality becomes: \[ 3 - x^2 > x - a \] Rearranging gives: \[ 3 + a > x + x^2 \] This can be rewritten as: \[ x^2 + x - (3 + a) < 0 \] ### Step 3: Find the roots of the quadratic To find the roots of the quadratic equation \( x^2 + x - (3 + a) = 0 \), we use the quadratic formula: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \] Here, \( a = 1, b = 1, c = -(3 + a) \): \[ x = \frac{-1 \pm \sqrt{1^2 - 4 \cdot 1 \cdot -(3 + a)}}{2 \cdot 1} \] \[ x = \frac{-1 \pm \sqrt{1 + 12 + 4a}}{2} \] \[ x = \frac{-1 \pm \sqrt{13 + 4a}}{2} \] ### Step 4: Condition for the quadratic to be negative For the quadratic \( x^2 + x - (3 + a) < 0 \) to have real roots, the discriminant must be non-negative: \[ 13 + 4a \geq 0 \] This gives: \[ a \geq -\frac{13}{4} \] ### Step 5: Case 2: \( x - a < 0 \) (i.e., \( x < a \)) In this case, the inequality becomes: \[ 3 - x^2 > -(x - a) \] Rearranging gives: \[ 3 - x^2 + x - a > 0 \] This can be rewritten as: \[ -x^2 + x + (3 - a) > 0 \] or \[ x^2 - x - (3 - a) < 0 \] ### Step 6: Find the roots of the second quadratic Using the quadratic formula again: \[ x = \frac{-(-1) \pm \sqrt{(-1)^2 - 4 \cdot 1 \cdot -(3 - a)}}{2 \cdot 1} \] \[ x = \frac{1 \pm \sqrt{1 + 12 - 4a}}{2} \] \[ x = \frac{1 \pm \sqrt{13 - 4a}}{2} \] ### Step 7: Condition for the second quadratic to be negative For the quadratic \( x^2 - x - (3 - a) < 0 \) to have real roots, the discriminant must also be non-negative: \[ 13 - 4a \geq 0 \] This gives: \[ a \leq \frac{13}{4} \] ### Step 8: Combine the conditions From the two cases, we have: 1. \( a \geq -\frac{13}{4} \) 2. \( a \leq \frac{13}{4} \) Thus, the possible values of \( a \) such that the inequality \( 3 - x^2 > |x - a| \) has at least one negative solution are: \[ -\frac{13}{4} \leq a \leq \frac{13}{4} \] ### Final Answer The possible values of \( a \) are: \[ a \in \left(-\frac{13}{4}, 3\right) \]
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